app-family-tree{display:flex;overflow-x:auto;height:100%}app-root,app-family-tree,app-family-child{display:flex;height:100%;width:100%;background:#f7f7f7}app-family-child{margin:20px 0}html,body,h1{margin:0;height:100%}.h-w{width:100%;height:100%}.text-center{text-align:center;overflow:hidden}